Petersen coil

noun Pe·ter·sen coil \ˈpētə(r)sən-\

Definition of Petersen coil

  1. :  a ground-fault neutralizer for high-voltage power circuits

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of petersen coil

probably after Waldemar Petersen, born 1880 German electrical engineer

Seen and Heard

What made you want to look up Petersen coil? Please tell us where you read or heard it (including the quote, if possible).


a trip made at another's expense

Get Word of the Day daily email!